Mold Cupla - Nitto Kohki

For Low Pressure

General purpose and mold coolant port coupling

Mold Cupla

Specifications

Body material

Size

Size (Thread)

Torque

Brass

1/8", 1/4", 3/8"

Hose: 1/4", 3/8" / Braided hose: ø9 x ø15

1/8"

5 {51}

1/4"

9 {92}

3/8"

11 {112}

Seal material

Nitrile rubber

Fluoro rubber

Mark

NBR (SG)

FKM (X-100)

Workingtemperature range

-20˚C to +80˚C

-20˚C to +180˚C

Remarks

Standard material

Available on request

Max. Tightening Torque Nm {kgf •cm}

Flow Direction

Interchangeability

Suitability for Vacuum

Plug Embedment Dimensions (mm)

Mold cooling water lineMold cooling water line

K-01PM

K-01PM-HH

K-02PM

K-02PM-HH

K-03PM

D*

20 or more

20 or more

20 or more

20 or more

20 or more

C*

0 to 3

0 to 3

0 to 3

0 to 3

0 to 3

L

28

24

29

24

30

Remarks

L

D

C

Model

Not suitable for vacuum application in either connected or disconnected condition.

Sockets and plugs can be connected regardless of end configurations and sizes. K01, K-02, and K-03 seriesare not interchangeable with high flow type K3 and K4 series. Can be connected to Super Cupla.

1 3 5 10 5030 100 300

Flow Rate – Pressure Loss Characteristics[Test conditions] •Fluid : Water •Temperature : Room temperature

Flow rate in L/min

K-02SH x K-02PM

K-03SH x K-03PM

K-02SH

15.5

19

19

19

19

19

19

19

19

19

19

19

19

K-03SH

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-02SM

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-03SM

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-02SF

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-02SHL

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

K-03SHL

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-90SN

15.5

28

23

23

28

23

28

28

28

28

19

28

28

K-02PH

K-03PH

K-01PM

K-01PM-HH

K-02PM

K-02PM-HH

K-03PM

K-01PF

K-02PF

K-03PF

K-01PML

K-02PML

K-03PML

Min. Cross-Sectional Area (mm2)

PlugSocket

Designed for quick replacementfor die and mold !Rust resistant models havingmany variations.• Space saving design for molds with closely spaced coolant ports.• Long sleeve socket facilitates connection/disconnection with plug embedded in mold.• Enables quick mold cooling water line connection/disconnection.• Various sizes and end configurations to suit a wide variety of mold applications.• Can be connected with Super Cuplas, excluding K3 and K4 types.• Push-to-connect design. (Built-in automatic shut-off valve in the socket) Also available is Cupla without valve (Please specify in ordering).• Cupla for braided hose connection requires no hose clamp. (Model K-90SN)

Pres

sure

loss

in M

Pa {k

gf/c

m2 }

0.3{3}

0.1{1}

0.05{0.5}0.03{0.3}

0.01{0.1}

0.5{5}

1.01.0 MPa

{10 kgf/cm2}

Working pressure Applicable fluids

Water

Valve structure

One-way shut-off Straight through Heated oil

* Socket interference prevents connection/disconnection when C exceeds 3 mm.

* Size D should be bigger than the outer diameter of the socket wrench to be used. (See JISB4636-1, JISB4636-2)

Fluid flow can be bi-directionalwhen socket and plugare connected.

Thread

Hose barb

For Braided Hose

Please use braided hoses available in the market.

Benefits withouta hose clamp

Tighten the nut until it is flush against the hose barb base after pushing a braided hose to the end.

Seal materialWorking temperature range

Working pressure

Pressure unit MPa

1.0

kgf/cm2

10

bar

10

PSI

145

Max working pressure and working temperature range of Cupla for braided hoses depend upon the specifications of braided hoses to be used.

63

1/43/83/8

798787

Mass(g)

K-02SHLK-03SHLK-03TSHL *1

ModelApplication

(Hose)Dimensions (mm)

L(52)(52)(52)

C212121

H(42.5)(42.5)(42.5)

øT81212

øB4.577

øD(21)(21)(21)

ød18.518.518.5

A292929

N16.816.816.8

Rc 1/4Rc 1/4Rc 3/8Rc 3/8

70708282

Mass(g)

K-02SMK-02TSM *1

K-03SMK-03TSM *1

Model ApplicationDimensions (mm)

L(51)(51)(52)(52)

H(WAF)

Hex.17Hex.17Hex.19Hex.19

øB6666

TR 1/4R 1/4R 3/8R 3/8

øD(21)(21)(21)(21)

ød18.518.518.518.5

A29292929

N16.816.816.816.8

R 1/4R 1/4

5757

Mass(g)

K-02SFK-02TSF *1


L(46.5)(46.5)

C14.514.5

H(WAF)

Hex.17Hex.17

TRc 1/4Rc 1/4

øD(21)(21)

ød18.518.5

A2929

N16.816.8

Rc 1/8Rc 1/4Rc 3/8

142035

Mass(g)

K-01PMK-02PMK-03PM


L313435

C151515

øB5.566

TR 1/8R 1/4R 3/8

H(WAF)

Hex.12Hex.14Hex.17

R 1/8R 1/4R 3/8

162235

Mass(g)

K-01PFK-02PFK-03PF


L28

30.532

C151515

øB666

TRc 1/8Rc 1/4Rc 3/8

H(WAF)

Hex.14Hex.17Hex.21

Rc 1/8Rc 1/4Rc 3/8

435371

Mass(g)

K-01PMLK-02PMLK-03PML


L33.533.533.5

C151515

øB566

TR 1/8R 1/4R 3/8

H30.533.533.5

1/4"3/8"

1719

Mass(g)

K-02PHK-03PH

ModelApplication


Models and Dimensions WAF : WAF stands for width across flats.

Mold Cupla

Plug PH type (Hose barb) Socket SH type (Hose barb)

Plug PM type (Male thread)

Plug PF type (Female thread)

Plug PML type (Male thread)

L4242

C1515

øBp4.57

øBd66

øT812

øH1215

A2121

Socket SM type (Male thread)

Socket SF type (Female thread)

Socket SHL type (Hose barb)

*1: Also available without socket valve (Made-to-order item), identified by product code TS (e.g. K-03SH without valve is K-03TSH). Also available are Cuplas with sleeve stopper (Made-to-order item).

B T

AC

L

N

dD

T

B

AH

L

N

dD

T

HA

L

N

C

dD

H

C

TB

LA

N

dD

L

H

BT

C

B

T

L

C

H

L

C

B

T H

Rc 1/8Rc 1/4

915

Mass(g)

K-01PM-HHK-02PM-HH


L2729

C1515

øB66

OutsideDiameter

ø11(ø13.4)

TR 1/8R 1/4

H55

Plug PM-HH type (Male thread)

C

TH

L

B

Plug with internal hexagon socket for Allen wrench

L

CA

H

Bp

T

Bd

• The photo shows model K-01PM-HH.

Socket SN type (For braided hose connection)

3±0.3 122ø9 x ø15L

(63)N

16.8A29

øD(21)

ød18.5

øB8.5

H1(WAF)

Hex.23H2(WAF)

Hex.24

ModelApplication (Hose)

(mm)Mass(g)

Dimensions (mm)Hose wallthickness(mm)

K-90SN

H1 H2

D d

B

L

A

N

1/41/43/83/8

52526060

Mass(g)

K-02SHK-02TSH *1

K-03SHK-03TSH *1

ModelApplication


L(67)(67)(59)(59)

C29292121

øB5577

øT881212

øD(21)(21)(21)(21)

ød18.518.518.518.5

A29292929

N16.816.816.816.8

Before use, please be sure to read “Safety Guide” described at the end of this book and “Instruction Sheet” that comes with the products.

64

K3-03SH

38

38

38

38

-

K3-04SH

38

62.5

62.5

62.5

-

K3-03SM

38

62.5

62.5

62.5

-

K3-03SF

38

62.5

62.5

62.5

-

K4-04SH

-

-

-

-

78.5

K3-03PH

K3-02PM

K3-03PM

K3-03PF

K4-04PM

Min. Cross-Sectional Area (mm2)

PlugSocket

For Low Pressure

High flow type mold coolant port coupling

Size (Thread)

Torque

1/4"

9 {92}

3/8"

11 {112}

1/2"

20 {204}


Flow Direction

Fluid flow can be bi-directional when socket and plug are connected.

Interchangeability

Suitability for Vacuum

Plug Embedment Dimensions (mm)

K3-02PM

K3-03PM

K4-04PM

D*

24 or more

24 or more

32 or more

C*

0 to 3

0 to 3

0 to 3

L

31

31

39

Remarks

L

D

C

Model

Not suitable for vacuum application in either connected or disconnected condition.

1 3 5 10 5030 100 300

Flow Rate – Pressure Loss Characteristics (Comparison with Mold Cupla)

[Test conditions] •Fluid : Water •Temperature : Room temperature

Flow rate in L/min

K02SH x K02PM

K03SH x K03PM

K4-04SH x K4-04PM

K3-03SH x K3-03PM

Mold CuplaHigh Flow Type

Flow rate has doubled to increaseproductivity.• High flow type K3 and K4 series are added to mold Cupla series for mold coolant and heated oil port coupling.• Almost double flow rate compared with our standard K01, K02 and K03 series, increasing productivity.• Space saving design for molds with closely spaced coolant ports.• Long sleeve socket facilitates connection/disconnection with plug embedded in mold.• Enables quick mold coolant hose connection / disconnection.

In K3 series sockets and plugs can be connected regardless of end configurations and sizes.In K4 series sockets and plugs can be connected regardless of end configurations and sizes.K3 series and K4 series are not interchangeable with each other.

Pres

sure

loss

in M

Pa {k

gf/c

m2 }

0.3{3}

0.1{1}

0.05{0.5}0.03{0.3}

0.01{0.1}

0.5{5}

Results of reduced cooling timein the field

Conventional K-0 seriesMold Cuplas were used.

K3 series are used.

Coolant water flow rate was checked with a flow meter, which confirmed increase by 1.7 to 1.8 times, when Mold Cupla K3 series are used.

Flow comparison

Increased by1.7 to 1.8 times UP

A customer replaced conventional K-0 series Mold cuplas with the K3 series and shortened the cooling time from 30 seconds to 21 seconds meaning an 18% reduction per shot and increased productivity by 20%. Temperature checks at 8 positions on the mold showed that surface temperatures on average had fallen by 3˚C, providing evidence of the high cooling efficiency.

1.01.0 MPa

{10 kgf/cm2}


Water

Valve structure

One-way shut-off Straight through Heated oil

* Socket interference prevents connection/disconnection when C exceeds 3 mm.

* Size D should be bigger than the outer diameter of the socket wrench to be used. (See JISB4636-1, JISB4636-2)

Specifications

Body material

Size

Brass

1/4", 3/8", 1/2"

3/8", 1/2" hose

Seal material

Nitrile rubber

Fluoro rubber

Mark

NBR (SG)

FKM (X-100)


-20˚C to +80˚C

-20˚C to +180˚C

Remarks

Standard material

Available on request

Thread

Hose barb


Working pressure

Pressure unit MPa

1.0

kgf/cm2

10

bar

10

PSI

145

65

R 3/8 87

Mass(g)

K3-03SF


L(49)

H(WAF)

Hex.21T

Rc 3/8øD

(24)ød

22.5A

25.5N19R 3/8 30

Mass(g)

K3-03PF


L33

C17.5

øB9.5

TRc 3/8

H(WAF)

Hex.21

3/8" 19

Mass(g)

K3-03PH

ModelApplication


Models and Dimensions WAF : WAF stands for width across flats.

Mold Cupla (High Flow Type) / Flow Meter

Plug PH type (Hose barb / High flow type)

Plug PF type (Female thread / High flow type)

L42.5

C17.5

øBp7

øBd9.5

øT12

øH14

A21

Socket SF type (Female thread / High flow type)

Notes: Also available without socket valve (Made-to-order item), identified by product code TS (e.g. K3-03SH without valve is K3-03TSH). Also available are Cuplas with sleeve stopper (Made-to-order item).

Rc 1/4Rc 3/8Rc 1/2

162550

Mass(g)

K3-02PMK3-03PMK4-04PM


L363646

C17.517.521.5

øB9

9.513

øTR 1/4 R 3/8R 1/2

H(WAF)

Hex.14Hex.17Hex.22

Plug PM type (Male thread / High flow type)

3/8"1/2"1/2"

100102226

Mass(g)

K3-03SHK3-04SHK4-04SH

ModelApplication


L(65)(67)(82)

øT121515

øB71010

øD(24)(24)(32)

ød22.522.530

N1919

26.5

A25.525.534

C212323

Socket SH type (Hose barb / High flow type)

Rc 3/8 90

Mass(g)

K3-03SM


L(56)

H(WAF)

Hex.21øB12

TR 3/8

øD(24)

ød22.5

A25.5

N19

Socket SM type (Male thread / High flow type)

Torque 11 {112}


Specifications

Seal material

Nitrile rubber

Mark

NBR (SG)


-20˚C to +60˚C

Remarks

Standard material

Body material

Size (Thread)


Max. flow rate

• Use within the temperature range of +10˚C to +60˚C due to plastic float material.

Body: Brass Graduated tube: Polycarbonate

Both ends Rc 3/8 female thread

18 L/min (5 to 18 L/min adjustable)

H1

L

D

T1 (Female thread) H2

T2(Female thread)

Models and Dimensions / Flow Direction WAF : WAF stands for width across flats.

190FM-03-BL

(89)D

(33)H2(WAF)

Hex.26H1(WAF)

Hex.23T2

Rc 3/8T1

Rc 3/8

Model Mass (g)Dimensions (mm)

For Low Pressure

Flow MeterFlow meter with special valve for mold cooling line

0.50.5 MPa

{5 kgf/cm2}


Water

For stable and accurate coolant flow rate.• Graduated scale enables easy visual check of coolant flow rate regardless of operator. • Built-in flow rate adjustment valve enables desired setting of mold conditions for each machine.• Easy resumption of previously set molding conditions to cut lead times.• T2 side is equipped with rotary function. Even after fixing the body on T1 side to the piping, additional screw tightening on T2 side is possible.

Fluid must flow in the direction of the arrows.

Pressure - Flow Characteristics[Test conditions] •Fluid : Water •Temperature : Room temperature •Valve open level : 100%

Flow rate in L/min

0.001{0.01}

0.01{0.1}

0.1{1}

1 10 100

Pres

sure

loss

in M

Pa {k

gf/c

m2 }

Application

L

A

N H

T

BdD

B

T

H C

L

dD

AN H

T

L

T H

Bp

A C

L

Bd

C

L

H

T

B

TB

L

A

N

D d

C

Working pressure

Pressure unit MPa

0.5

kgf/cm2

5

bar

5

PSI

72.5

Before use, please be sure to read “Safety Guide” described at the end of this book and “Instruction Sheet” that comes with the products.

66

Mold Cupla - Nitto Kohki

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